diff --git a/package.json b/package.json
index ab3dc6c1..d5c1bb93 100644
--- a/package.json
+++ b/package.json
@@ -74,7 +74,7 @@
     "@types/sinon": "^10.0.0",
     "@types/uuid": "^9.0.0",
     "bignumber.js": "^9.0.0",
-    "c8": "^8.0.1",
+    "c8": "^9.0.0",
     "codecov": "^3.6.5",
     "gapic-tools": "^0.3.0",
     "gts": "^5.0.0",